Summary
To realize a pulsed electron beam of high energy (2.5 MeV) and great intensity (ca 1 A) the influence of space charge has to be taken into account. A calculation in this article shows that at an average field strength in the acceleration tube of 106 V/m the influence of the space charge begins to play a dominating part at a current density of 2A/cm2.
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References
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Sangster, M. The influence of the space charge in an electron beam accelerated in a constant electrostatic field up to energies of several MeV. Appl. Sci. Res. 4, 261–270 (1955). https://doi.org/10.1007/BF02316490
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DOI: https://doi.org/10.1007/BF02316490